同名的全局變量與局部變量

原創 隱夢江南 2020-05-31 18:09

    朋友們都知道，局部變量命名時是不能與全局變量同名的，但是我們偏要它同名會發生什麼呢。

    當局部變量與全局變量同名時，在局部範圍內全局變量是不起作用的，若要在局部範圍訪問全局變量，需在變量名前加上作用域符：：


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